Windows Service that raises DTR on powerup

**SportivoWISH** · 03-25-2004, 03:40 AM

Originally Posted by chut

I tested it on my machine at my desk and ended up getting -12.28 volts out of three of the wires coming out of the DB9 port. if the computer was on, without windows loaded it still had power. Not working yet....any ideas?

I have tested and get a negative voltage when AmpCtrl service is turn off.

**Magpie** · 04-02-2004, 12:09 PM

Not sure what the issue is here. I installed the .NET framework stuff and used installutil.exe to install ampctrl.exe. The install fails telling me about a win32 exception error and something about the username and or password is wrong. I'm installing using the administrator account so I'm not sure what up.

Can anyone help me?

**NiNeX** · 05-02-2004, 04:31 PM

Would it be possible to do this with the parrallel port as well? I already have both of my serial ports being used by the gps and touchscreen. I want to be able to turn the amp on post startup, since when I get the thump by amp will sometimes put itself into protect mode and I will have to power cycle the amp to get it up again.

**storm** · 05-14-2004, 08:23 AM

Originally Posted by Magpie

Not sure what the issue is here. I installed the .NET framework stuff and used installutil.exe to install ampctrl.exe. The install fails telling me about a win32 exception error and something about the username and or password is wrong. I'm installing using the administrator account so I'm not sure what up.

Can anyone help me?

This is what happens to me to!!! Not on my home PC (WinXP) just my carPC (Win 2000). Anyone found a solution to this?

**SteveC** · 05-14-2004, 11:22 AM

Originally Posted by NiNeX

Would it be possible to do this with the parrallel port as well? I already have both of my serial ports being used by the gps and touchscreen. I want to be able to turn the amp on post startup, since when I get the thump by amp will sometimes put itself into protect mode and I will have to power cycle the amp to get it up again.

Yes it should be and you then have a whole bunch of extra lines to play with.

A small bit of programming should allow a user customizable interface that allowed individual pins to be 'switched' and as long as they were buffered with a bunch of transistors on a bit of breadboard you could build a really nice bit of kit. It could control the LCD touchscreen, remote amplifier, neons, spinning disco ball (lol) etc and you could also use a scripting language to control all of the functions with timers or event triggers.

A bit of C+ programming should do it.

Steve